Vanner.



Patented Mar. [3, I900. H. T. BENSON.

VANNER.

(Applicabiqn filed Apr. 3, 1899.)

(No Model.)

4 Sheets-Sheet I.

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Patented Mar. l3, I900. H. T. BENSON.

V A N N E R.

(Application filed Apr. 3, 1899.)

(No Model.)

4 Sheets-Sheet Z.

mm QM m W a No. 645,061. v Patented Mar. l3, I900. H. T. BENSON.

VANNER.

(Application filed Apr. 3, 1899.) (No Model.) 4 ShaatsSheet 3.

8W1) unto?) 6mm m: -onn|s PETERS co. Pnorournuu WASHINGTON. n, c.

No. 645,061. Patente d Mar. l3, I900. H.- T. BENSON.

VANNER.

(Application filed Aim 3, 1899.)

(No Model.) 4 Sheets-Sheet 4.

Snow who;

STATES HARRISON T. BENSON, OF DENVER, COLORADO.

VANNERF SPECIFICATION forming part of Letters Patent No. 645,061, datedMarch 13, 190i). Application filed April 3, 1899- Serial No. 711,574.(No model.)

To to whom it may concern:

Be it known that I, HARRISON T. BENSON, a citizen of the United States,residing at Denver, in the county of Arapahoe and State of Colorado,have invented certain new and useful Improvements in Vanners and I dohere by declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to an improved vanner; and it consists of thefeatures hereinafter described and claimed, all of which will be fullyunderstood by reference to the accompanying drawings, in which isillustrated an embodiment thereof.

In the drawings, Figure 1 is a longitudinal top View of my improvedvanner. Fig. 2 is "an elevation of the left side of my device.

Fig. 3 is an elevation, partly in section, of the right side. Fig. 4. isa front elevation, partly broken away. Fig. 5' is a detail View of thehangers and holders of the vanner-box. Fig. 6 is a verticalcross-section of rolls 18 and 18, showing apron 16 between them. Fig. 6is a View of the sprocket-wheels attached to rolls 18 and 18", showingsprocketohain engaging said wheels. Fig. 7 is a vertical cross-sectionof vanner-boX and apron on line A A, Fig. 1. Fig. 8 is a verticalcross-section of adjustable hinge-block on line B B, Fig. 10. Fig. 9 isa view of one of the adjustable eccentrics. Fig. 9 is a verticalcross-section of adjustable eccentric on line .9 s, Fig. 9. Fig. 10 isaviewofone of the adj ustable hingeblocks complete. Fig. 10 is a Viewshowing the reamingin the hinge-box 14. Fig. 11 is a View of the part towhich hingeblock 12 is hinged. Fig. 12 is a side view of hinge-block 12detached from plate 10. Fig. 13 shows one of themetal strips 10 that liebetween fianges 10 and edges of hinge-block adj acent thereto. Fig. 14is a longitudinal vertical section of the vanner-box and rolls, showingthe position of the apron. Fig. 15 is a vertical cross-section of thevanner-box, showing part of roll 7. Fig. 16 is a view of adjustableclamp-box 32 on leg 5 of stationary frame. Fig. 17 is a View ofadjustable clamp-box 30 on top of the rail5 of stationary frame. Fig. 18is a perspective View of beveled strips 16 side rail 6, and floor 6.

The stationary frame, which may be of any suitable dimensions, isconstructed with fitclined, is supported by metal .straps 27, at-

tached by forked bolts 52 to holders 28, Fig. 5,) fastened to rail 5with clamp-straps 28 and 28 6 is a fork-bolt which is screwed into siderail 6. An eye is formed in each (see fork and also through the lowerpart of metal,

strap 27. The two parts are connected with a'bolt, as shown in Fig.6.The upper end of strap 27 is connected in like manner to forked bolt 52.The upperextremities of bolts 52 are threaded and provided withadjustingnut 52 for regulating the inclination of the vanner-box. (SeeFig. 5.) The vanner-box consists of the side rails 6 and the floor 6,over which the apron 16 passes. Located at each extremity of the vanneris roll 7 and 7 journaled in the framework of the vannerbox. At rear ofvanner the roll 7 is so adjusted that it stands one inch above the floor6, thus forming the end of vanner-box, as shown in Fig. 14. Undersprocket-chain 16 are strips 1o the full length of floor 6 one andone-quarter inches thick and three and one-half inches wide or any othersuitable dimensions beveled toward the inside, (see Figs. 15 and 18,)thus carrying both edges of apron 16 high on both sides, forming therebythe sides, while roll 7 forms the end of the vanner-box. I prefer to setroll 7about onequarter of an inch below the top of side strips 16 Therolls 7 and 7 are made adj ustable and detachable in the followingmanner: Shaft 9 passes through a combination hinge-box 14, the hole inwhich is reamed out on both sides, tapering to the center. This obviatesany bind of shaft in box. Box 14 is operated back and forth in a recessin hingeblock 12 with set-screw 15,as shown in Fig. 12. 10 is the plate,with flanges 10 to which the rear end of hinge-block 12 is hinged.

13 is the' hingebolt, passing down through the eye in the rear end of 12and the eye of Legs 5 of stationary-frame metal strips 10, which liebetween flanges 10 and the edges of hinge-block 12.

13 is a wedge-bolt passing down through flanges 10 on the outside ofmetal strips 10 and hinge-block 12, clamping hinge-block 12 and metalstrips 10 tight back against plate 10. Thus it will be seen by removingwedge-bolt 13 hinge-block 12 will swing out like a hinge and be releasedfrom shaft 9, and by removing hinge-bolt 13 hinge-block 12 is releasedfrom back plate 10, (see Figs. 11 and 12,) which is attached to end ofside rail.

In Fig. 8, 6 is the end of side rail, showing the back plate 10 fastenedthereto. The tenoned part of hinge-block 12 is considerably narrowerthan the space between the flanges 10. This space is filled with metalstrips of different thicknesses, with suitable holes through one end ofeach strip through which hinge-pin 13 passes (see Fig. 13) when stripsare laid in place between flanges 10 and hinge-block 12. Thus it will beseen that by changing strips from top to bottom or bottom to top ofhinge-block 12 the rolls 7 and 7 will be raised or lowered, as desired.In removing any apron or roll it is only necessary to remove wedge-bolt13 and swing hingeblock 12 out of engagement with shaft 9. Roll 7 isthus released and apron 16 can be put on or taken off at will. Thisforms a perfect adj ustable hinge-block box in every particular,answering all the purposes for which it was designed.

The adjustable eccentrics 35 are suitably journaled on shaft 32. (SeeFig. 1.)

are set-screws passing through the collar of the inside block 35 andwhen tightened hold said block securely to shaft 32. (See Figs. 9 and9%) Set-screws pass through the collar of outside block 35 and securelyhold block 35 to block 35. Band 35 is made in two pieces, and clampedtogether With bolts at their central points. This band is provided onits inside with a tongue or guide adapted to engage a groove in theperiphery of outside block 35 By loosening set-screws 60 and 70 theinside blocks 35 may be turned to the right or left to any desired pointto increase the throw from nothing to an inch or more, thus providingthe proper oscillation for the vanner-box. In Fig. 9 the eccentric isset out at zero and would give .no throw it shaft 32 were in motion.

35 are eccentric-rods attached by boxing 36 to shaft 36.

36 is a shaft suitably attached to the under side of rails 6 by boxing36.

Shaft 32 is attached 'to legs 5 of the stationary frame by clamps 2,which are adapted to be moved up or down legs 5, as may be re quired bygrade of vanner-box. (See Fig. 16.)

Apron 16 is made of heavy ducking thoroughly saturated with asphaltvarnish. This makes the apron 16 water-tight, adds mateterially to itsdurability, smooths down the fibers, and leaves the millions of littlerecesses in the apron 16, which are very essential in holding themineral while separating it from the waste.

33 is a pulley suit-ably attached to drivingshaft 32 and is connected bybelt 37 with pulley 31, which is attached to counter-shaft 30.Counter-shaft 30, mounted in journalboxes, is suitably attached to topside rails of stationary frame with adjustable clamps 30, fastened byset-screws. By loosening the set-screws,as shown in Fig. 17, theclamp,with its journal-box and counter-shaft 30, can be moved either wayon the rail until shaft 30 is plumb over shaft 41. (See Fig. 3.)(Jonepulley 40, which is suitably attached to counter-shaft 30, isconnected by belt38 to conepulley 42. Cone-pulley 42 is attached toshaft 41, which is attached with boxes to the under side of side rail 6of vanner-box. Beveled cog-wheel 50, which is suitably attached to shaft41, meshes with beveled cog-wheel 45, attached to shaft 43, as shown inFig. 1. Shaft 43, which is attached to side rail 6 with boxes 43, hasworm 44 attached to it, which meshes with worm-wheel 47. (Illustrated inFig. 3.) Worm-wheel 47 is suitably attached to shaft 9,to which issecured roll 7. Sprocketwheels 8 are attached to shaft 9 tight upagainst the guides on roll 7.

I prefer to wrap rolls 18 and 18 in heavy canvas for the purpose offorming a more spongy surface. As shown in Fig. 6, setscrews areprovided for rolls 18 and 18", enabling roll 18 to be adjusted tight upagainst apron 16 and roll 18". Thus by friction apron 16 is drawn tautfrom front down under roll 17 and up between rolls 18 and 18 Here theslack of apron 16 is dropped behind, as shown by dotted lines of Fig.14.

17 and 18" are hangers projecting down ward, attached to side rails 6 byclamps l9. Set-screws 20 pass through nut 17 and are suitably arrangedto adjust roll 17 and rolls 18 and 18 in order to regulate the tensionof apron 16, thus providing the amount of slack required in apron toform vanner-box.

23 is a water-box, and 23 are stop-cocks. 23 are adjustable hangers forwater-box, said hangers being attached to rail 5 by clamps 26. 25 is ascrew-buckle to adjust water-box 23 to a perfect level. Thus it will beseen that the water-box is suspended clear on hangers 23 across andabove vanner-box in such manner that the oscillating of the vanner-boxwould not in the least disturb the water in box 23.

24 is a suitable feed-box extending across the top of vanner-box andattached to side rails 6 thereof.

The operation of the device, as will be readily understood, is asfollows: The shaft 32 is rotated by power applied thereto from anysuitable source through the belt 39 and cone-pulley 34 on the end ofsaid shaft. From said shaft the power is transmitted to the frame 6through the eccentrics and rods 35, causing the oscillation of saidframe. Power is also transmitted from said shaft 32 through the pulley33 thereon, the belt 37,

and the pulley 31 to the shaft 30 and from the latter shaft through thepulley 40, belt 38, and pulley 42 to shaft 41. The rotation of the shaft41 causes,-through the pinions 50 and 45, the rotation of the shaft 43,and as the latter is geared through the worms 44 and worm-wheel 47 withthe shaft 9 the latter shaft, which carries the roll 7, is also rotated.The sprocket-wheels 8 are also mounted on the shaft 9, and through thesewheels and the sprocket-chains 16 the opposite roll 7 is rotated, as arealso the sprocket-wheels 18. The rolls 7 and 7 are thereby turned in thesame direction and carry with them the apron 16, the same passing underthe roll 17 and between the gripping-rollslS and 18, which are turned inopposite directions. It will thus be seen that four of the five rollsused are actuated by the sprocket-chains 16 without the aid of the apron16. The apron is run with sufficient amount of slack to be drawn up overroll 7 as roll 7 is rotated by the chains 16 At the same time thepressure of the water and pulp forces the apron down on the floor 6depressing the central portions thereof below the sides. If the apronwere drawn sui'hciently tight to drive the four rolls, it would presenta plane surface on top, as shown in dotted lines in Fig. 14. Thematerial to be treated being fed upon or delivered to the apron 16 andwith a speed of from three hundred to five hundred oscillations perminute of the frame 6, the pulp and the water are thoroughly agitatedand the precious metal to be recovered percolates through the mass andsettles upon the apron. The waste passes over the rear roll 7, while theapron 16, traveling forward, carries the metal over the roll 7 and downinto the tank 21 filled with water. Any slimes rising to the top of thewater in the tank 21 will pass off into tank 22.

By means of the cone-pulleys 40 and 42 andthe gearing between them andthe shaft 9, carrying the sprocket-wheels 8 and roll 7, the speed of theapron 16 may be readily controlled to adapt the machine for thetreatment of anvkind of ore.

' Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In an ore -concentrator, an oscillating frame, comprising rolls atthe ends thereof, and a traveling belt or apron passing around saidrolls, beariu g-blocks for said rolls, hinged supports for said blockshaving elongated slots therein in which said blocks are adj ustable, andmeans for locking said supports to maintain said blocks normally inoperative position, substantially as set forth.

2. In an oreconcentrator, an oscillating frame, comprising rolls at theends thereof, and a traveling belt or apron passing around said rolls,bearing-blocks for said rolls, plates secured to said frame havingflanges thereon,

supports for said blocks lying between said flanges and pivoted thereto,and a lockingpin extending through said flanges and engaging the outersurfaces of said supports, substantially as set forth.

3; In an ore-concentrator, the combination with a stationary frame, of asuspended vanner thereon, means for oscillating said vanner, an apronmade of heavy ducking thoroughly saturated with asphalt varnish andmoved by friction of rolls 18 and 18 adjustable hangers for said vanner,adjustable han ers for the roll 17 and for the rolls 18 and 18 the saidrolls 18 and 18 being covered with canvas to form a yielding surface,and being turned in opposite directions by means of sprocket chainspassing between and engag ing the sprocket-wheels on said rolls, thesaid sprocket-chains passing around the rear roll 7, engagingsprocketwvheels thereon, and engaging sprocket-wheels on front roll 7*,and sprocket-wheels on the front roll 7 rotated by worm-gear attached toshaft 9 of roll 7 substantially as set forth. r

4. In an ore-concentrator, the combination with a frame, of anoscillatory vanner-box suspended therefrom, rolls located at the end ofsaid vanner-box, a tank 21, a roll 17 there in, an apron surrounding thevanner-box and its end rolls and passing under roll 17, and

rolls 18 and 18 adapted to draw said apron between them by friction,said rolls being provided at their ends with sprocket-wheels 18 andadapted to be rotated in opposite directions by the sprocket-chains 16passing between and engaging said sprocket-wheels,

substantially as set forth.

5. In an ore-concentrator, the combination with a frame of anoscillatory vanner-box suspended therefrom, rolls located at the ends ofsaid vanner-box, the shafts of said rolls passing throughbearing-block's 14 which are adjustable back and forth in recesses inthe supports 12 by set-screws 15, plates 10 provided with flanges 10 towhich the rear ends of the supports 12 are hinged by hinge-bolts 13passing through eyes in flanges 10 and eyes in the rear ends of saidsupports, bolts 13 extending through eyes in the flanges 10 adapted tohold the supports 12 against the side rails-6, strips 10 adapted to liebetween the flanges 10 and the top and bottom edges of the supports 12to adjust the height of said supports, a tank 21, a roll 17 therein, anda traveling apron surrounding the vanner-box and its end rolls andpassing under roll 17, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses,

HARRISON T. BENSON. Witnesses:

FRANK T. JOHNSON, RICHARD L. SHAW.

